
#include"my_add.h"
#include"my_sub.h"

int main()
{
    int a =20;
    int b= 10;
    int res = add(a,b);
    printf("加法结果为：%d\n",res);
    int res1 = sub(a,b);
    printf("减法结果为：%d\n",res1);
    return 0;
}